Question

A.tick( )the correct options:

5. The length and the breadth of a rectangular field are in the ratio 5:3 and its perimeter is 448 m The
area of the field is :
(i) 11.760 m2 (ii) 15,000 cm (iii) 7.200 cm 1 (iv) 13,560 cm

6. On Increasing each side of a square by 25% the increase in the area will be:.
(i)30%
(ii)50.5%
(iii)56.25%
(iv) 40.5%​

Answer 1

Step-by-step explanation:

1) 2(l+b)= 448

2(5x+3x)=448

2(8x) = 448

16x=448

x=448/16

x=28

length = 5x = 5×28=140 cm

breadth= 3×28=84cm

find area of rectangle:

length×breadth=140×84=11760

so , the answer is (i)

2) the answer is 30%

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